Core Viewpoint - The article discusses the introduction of fish species in Foshan's parks as a biological method to control mosquito populations and prevent the spread of diseases like Chikungunya fever [1][2]. Group 1: Mosquito Control Initiative - Foshan's Chancheng District has released a total of 5,200 fish into local parks, including 4,000 silver carp and 200 Lali Maozu bass, to reduce mosquito breeding [1]. - The initiative aims to lower the density of mosquito larvae by utilizing fish that feed on mosquito eggs and larvae, thereby interrupting the transmission chain of mosquito-borne diseases [1][2]. Group 2: Species Information - The fish species introduced are local varieties, with the Lali Maozu bass being a common ornamental fish, unlike the invasive "mosquito fish" which poses ecological threats [2]. - "Mosquito fish," originally from Mexico and the USA, is known for its aggressive nature and high reproductive rate, making it one of the top 100 invasive species globally [2]. Group 3: Monitoring and Evaluation - Local authorities will continuously monitor and evaluate the ecological impact and effectiveness of the introduced fish species in controlling mosquito populations [2].

Core Viewpoint - The Panyu District is actively engaged in ecological restoration efforts through the release of aquatic species, with a focus on enhancing biodiversity in the Pearl River system [4][6]. Group 1: Aquatic Species Release Activities - On June 24, the Panyu District held its 2025 aquatic species release event, where over 1.57 million fish and shrimp were released, including species such as grass carp, yellowfin seabream, and white eel [2][3]. - The district has conducted these release activities for 44 consecutive years, emphasizing their importance in ecological restoration and the maintenance of aquatic resources [6]. Group 2: Biodiversity and Ecological Improvement - In the past five years, Panyu District has released over 5.5 million aquatic species, optimizing the variety and quantity of species to enhance local biodiversity [7][8]. - Local species such as yellowfin seabream and shrimp have shown a recovery in population, contributing to the ecological vitality of the Pearl River [8][9]. Group 3: Sustainable Fisheries Development - Panyu District is committed to consolidating and expanding its fisheries development achievements, which include ongoing release activities and initiatives for river protection and water environment management [10][11]. - The district promotes a green and circular development model for its fisheries, aiming for high-quality industry growth [12][13]. Group 4: Innovative Aquaculture Practices - The district has established benchmark models for fishery governance, including various water treatment methods and ecological breeding practices to reduce wastewater discharge [14][15][19]. - Panyu District encourages the adoption of premium aquaculture species and ecological mixed farming to enhance the quality of its fisheries, contributing to the public brand "Panyu Fresh" [18][19].